<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <button>123</button>
  <input type="text" name="" id="">
  <script>
    document.querySelector('input').addEventListener('input', () => {
      console.log(123)
    })
    document.querySelector('button').addEventListener('click', () => {
      console.log(111111111)
    })
    document.querySelector('button').click()
    document.querySelector('input').input()
  </script>
</body>

</html>